Christoph Lingg created SOLR-5152:
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Summary: EdgeNGramFilterFactory deletes token
Key: SOLR-5152
URL: https://issues.apache.org/jira/browse/SOLR-5152
Project: Solr
Issue Type: Improvement
Affects Versions: 4.4
Reporter: Christoph Lingg
I am using EdgeNGramFilterFactory in my schema.xml
{code:xml}<fieldType name="text" class="solr.TextField"
positionIncrementGap="100">
<analyzer type="index">
<!-- ... -->
<filter class="solr.EdgeNGramFilterFactory" minGramSize="2"
maxGramSize="10" side="front" />
</analyzer>
</fieldType>{code}
Some tokens in my index only consist of one character, let's say {{R}}.
minGramSize is set to 2 and is bigger than the length of the token. I expected
the NGramFilter to left {{R}} unchanged but in fact it is deleting the token.
For my use case this interpretation is undesirable, and probably for most use
cases too!?
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